package Array.collection;

import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.function.BiConsumer;

public class map1 {
    public static void main(String[] args) {
        Map<String, Double> a=new HashMap<>();
        a.put("合法化",236.3);
        a.put("的发放",273.3);
        a.put("芳芳",254.3);
        a.put("啊我发",283.3);
        //键找值
        //获取键
        Set<String> b = a.keySet();
        //遍历全部键，获取全部值
        for (String s : b) {
            double c = a.get(s);
            System.out.println(s + "======>" + c);
        }  //键值对
        //调用MAp集合提供entrySet方法，吧map集合转换成键值对类型的set集合
            Set<Map.Entry<String, Double>> entries = a.entrySet();
            for (Map.Entry<String, Double> entry : entries) {
                String key = entry.getKey();
                Double value = entry.getValue();
                System.out.println(key + "=====" + value);

            }
         a.forEach((u,i)-> {
             System.out.println(u + "=======" + i);
         });
         a.forEach(new BiConsumer<String, Double>() {
             @Override
             public void accept(String u, Double i) {

             }
         });
        }

    }